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Liquid magma flows upward through cracks in rock because it is less dense than the surrounding material
Wiki User
∙ 13y ago
Wiki User
∙ 12y agobecause in order 4 the volcano 2 happen it need 2 push the tectonics plates away form each so it can erupt
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What is the term for the flow of magma through cracks in the earth's surface?
the flow of magma in eath's crust is called lava.
Liquid magma flow upward through the crust because it is less dence than the solid material around it?
less dense than the solid material around it
What causes magma to flow out of a weak spot in the earths crust?
Geothermal presure.
What is the state of matter of oceanic crust?
It is in a solid state of matter. Unlike the deeper rocks of the mantle, crustal rocks do not readily deform, and heating from below will cause the lowest layers to melt into magma...which being less dense tends to flow upward.
How does magma leave a volcano?
Magma collects in a magma chamber.the magma moves upward through a pipe, a long tube in the ground that connects the magma chamber to earths surface. Molten rock and gas leave the volcano through an opening called a vent. A lava flow happens when an are covered by lava pours out of the vent. A crater is a bowl shaped area at the top of the volcano around the central vent where magma comes out. Magma is beneath the volcano. Lava is the name of magma after it leaves a volcano. YOUre WELCome
What is the term for the flow of magma through cracks in the earth's surface?
the flow of magma in eath's crust is called lava.
Liquid magma flow upward through the crust because it is less dence than the solid material around it?
less dense than the solid material around it
What natural phenomenom occurs when magma breaks through the earth crust?
A lava flow may flow over the surface from a fissure deep enough to reach the magma layer. Or, if under pressure, an eruption from a volcano.
What causes magma to flow out of a weak spot in the earths crust?
Geothermal presure.
What causes magma to flow upward thought the earths surface?
The tectonic plates push together thus causing magma to shoot up and rise hence an eruption
What explains the movement of the earth's crust?
The earth's crust moves because the earth has tectonic plates that move because the magma under the earth's surface is constantly boiling. Since the water moves, it causes the earth's crust to move.
What is the state of matter of oceanic crust?
It is in a solid state of matter. Unlike the deeper rocks of the mantle, crustal rocks do not readily deform, and heating from below will cause the lowest layers to melt into magma...which being less dense tends to flow upward.
How does magma flow in an explosive eruption?
magma flows upward mixed with ash. it cools quickly when thrown up in the air and become pyroclastic blocks bombs and boulders which are the main cause of fatalities
How does magma leave a volcano?
Magma collects in a magma chamber.the magma moves upward through a pipe, a long tube in the ground that connects the magma chamber to earths surface. Molten rock and gas leave the volcano through an opening called a vent. A lava flow happens when an are covered by lava pours out of the vent. A crater is a bowl shaped area at the top of the volcano around the central vent where magma comes out. Magma is beneath the volcano. Lava is the name of magma after it leaves a volcano. YOUre WELCome
What can allow melted rock to ooz out In a lava flow?
magma is less dense than the surrounding rock, so it is forced upward to the earth's surface
What can allow melted rock ooze out in a lava flow?
magma is less dense than the surrounding rock, so it is forced upward to the earth's surface
What is the definition of cooling and hardening?
Harding of rock formations through magma flow.
